EP 2080991 A4 20120328 - ROTATION ANGLE DETECTION DEVICE
Title (en)
ROTATION ANGLE DETECTION DEVICE
Title (de)
DREHWINKEL-DETEKTIONSEINRICHTUNG
Title (fr)
DISPOSITIF DE DÉTECTION D'ANGLE DE ROTATION
Publication
Application
Priority
- JP 2007071243 W 20071031
- JP 2006295269 A 20061031
Abstract (en)
[origin: EP2080991A1] A rotation angle detection device comprises a rotor (120) attached to a measurable rotation body (Sh) for rotating with the measurable rotation body to be measured a rotation angle, and comprising a magnet (110) that a magnetic flux density around the measurable rotation body is changed thereby in response to the rotation angle of the measurable rotation body; a stator (130) to be attached as independent of the rotation of the measurable rotation body; a detection element ((150) (151-154)) fixed on the stator for detecting a change in magnetic flux densitydue to the magnet in response to the rotation of the measurable rotation body; and a case for packing the rotor, the stator and the detection element. By detecting the rotation angle of the measurable rotation body in response to a detection signal from the detection element according to the rotation of the measurable rotation body, it becomes able to provide a rotation angle detection device comprising less number of components, to be small sized, to be easily assembled, and having excellent detection characteristics.
IPC 8 full level
G01D 5/18 (2006.01); G01B 7/30 (2006.01); H01L 43/06 (2006.01); H01L 43/08 (2006.01)
CPC (source: EP US)
G01B 7/30 (2013.01 - EP US); G01D 5/145 (2013.01 - EP US)
Citation (search report)
- [XI] DE 102004001837 A1 20040722 - DENSO CORP [JP]
- [XA] EP 1065473 A2 20010103 - DENSO CORP [JP]
- [X] FR 2861458 A1 20050429 - SKF AB [SE]
- See references of WO 2008053928A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2080991 A1 20090722; EP 2080991 A4 20120328; JP 2008111737 A 20080515; US 2009309585 A1 20091217; WO 2008053928 A1 20080508
DOCDB simple family (application)
EP 07830977 A 20071031; JP 2006295269 A 20061031; JP 2007071243 W 20071031; US 44776907 A 20071031